difference velocity field

ratio of peripheral velocity difference

difference interval velocity

ratio of pulp velocity and sire velocity

velocity derived from velocity spectrum

difference in difference

difference in difference (DD) method

Difference-in-difference

1-D velocity structure

1st order slip velocity boundary

2 D velocity field

2-D velocity equation

2-D Velocity In version

2D velocity structure

3 dimensional velocity measurement

3-D crustal velocity tomographicimage

3-D migration velocity field

3-D migration velocity model

3D point-type velocity meter